From dcc9bde0101f8246b34ac857fac1b6c3608f0c3f Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Thu, 9 Aug 2007 10:45:19 +0000
Subject: [PATCH] write stream headers

Originally committed as revision 10008 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavformat/nutenc.c | 55 +++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 54 insertions(+), 1 deletion(-)

diff --git a/libavformat/nutenc.c b/libavformat/nutenc.c
index 6cb57f0ed9..cda4704f6f 100644
--- a/libavformat/nutenc.c
+++ b/libavformat/nutenc.c
@@ -251,6 +251,12 @@ static int write_header(AVFormatContext *s){
         nut->time_base[j]= nut->stream[i].time_base;
         if(j==nut->time_base_count)
             nut->time_base_count++;
+
+        if(av_q2d(nut->stream[i].time_base) >= 0.001)
+            nut->stream[i].msb_pts_shift = 7;
+        else
+            nut->stream[i].msb_pts_shift = 14;
+        nut->stream[i].max_pts_distance= FFMAX(1/av_q2d(nut->stream[i].time_base), 1);
     }
 //FIXME make nut->stream[i].time_base pointers into nut->time_base
 
@@ -320,9 +326,55 @@ static int write_header(AVFormatContext *s){
 
     update_packetheader(nut, bc, 0, 1);
 
+    for (i=0; i < s->nb_streams; i++){
+        codec = s->streams[i]->codec;
+
+        put_be64(bc, STREAM_STARTCODE);
+        put_packetheader(nut, bc, 120/*FIXME check*/ + codec->extradata_size, 1);
+        put_v(bc, i);
+        switch(codec->codec_type){
+        case CODEC_TYPE_VIDEO: put_v(bc, 0); break;
+        case CODEC_TYPE_AUDIO: put_v(bc, 1); break;
+//        case CODEC_TYPE_TEXT : put_v(bc, 2); break;
+        default              : put_v(bc, 3); break;
+        }
+        put_v(bc, 4);
+        if (codec->codec_tag){
+            put_le32(bc, codec->codec_tag);
+        }else
+            return -1;
+
+        put_v(bc, 0); //FIXME
+        put_v(bc, nut->stream[i].msb_pts_shift);
+        put_v(bc, nut->stream[i].max_pts_distance);
+        put_v(bc, codec->has_b_frames);
+        put_byte(bc, 0); /* flags: 0x1 - fixed_fps, 0x2 - index_present */
+
+        put_v(bc, codec->extradata_size);
+        put_buffer(bc, codec->extradata, codec->extradata_size);
+
+        switch(codec->codec_type){
+        case CODEC_TYPE_AUDIO:
+            put_v(bc, codec->sample_rate);
+            put_v(bc, 1);
+            put_v(bc, codec->channels);
+            break;
+        case CODEC_TYPE_VIDEO:
+            put_v(bc, codec->width);
+            put_v(bc, codec->height);
+            put_v(bc, codec->sample_aspect_ratio.num);
+            put_v(bc, codec->sample_aspect_ratio.den);
+            put_v(bc, 0); /* csp type -- unknown */
+            break;
+        default:
+            break;
+        }
+        update_packetheader(nut, bc, 0, 1);
+    }
+
     put_flush_packet(bc);
 
-    //FIXME stream header, ...
+    //FIXME info header, header repeation, header packet CRC, ...
 
     return 0;
 }
@@ -350,4 +402,5 @@ AVOutputFormat nut_muxer = {
     write_packet,
 //    write_trailer,
     .flags = AVFMT_GLOBALHEADER,
+    .codec_tag= (const AVCodecTag*[]){codec_bmp_tags, codec_wav_tags, 0},
 };